Hackerbot

Hackerbot is a two-wheeled
autonomous robot created by Eric
Johanson, Paul Holman
and others to roam through areas using WiFi networks, detecting and
logging insecure transmissions. Despite the name, the robot seems to
act more like a cracker, not
a hacker.
The 40lbs, battery powered robot was demonstrated at the recent Defcon convention in Las Vegas.
According to Eric, Hackerbot's code will be released shortly as Free
Software licensed under the GNU GPL. Other
stories about Hackerbot can
be found on News.com, MSN
news, and Slashdot.